Need help on this!!!

[Nicolenss]

Error:
 Traceback (most recent call last):
File "decodexorpayload.py", line 45, in <module>
process_packets()
File "decodexorpayload.py", line 43, in <module>
wrpcap("dump.pcap", cooked)
File "/usr/local/lib/python2.7/dist-packages/scapy-2.4.3rc1.dev282-py2.7.egg/scapy/utils.py",line 847, in wrpcap
fdesc.write(pkt)
File "/usr/local/lib/python2.7/dist-packages/scapy-2.4.3rc1.dev282-py2.7.egg/scapy/utils.py",line 1301, in write
self._write_packet(p)
File "/usr/local/lib/python2.7/dist-packages/scapy-2.4.3rc1.dev282-py2.7.egg/scapy/utils.py",line 1409, in _write_packet
rawpkt = raw(packet)
File "/usr/local/lib/python2.7/dist-packages/scapy-2.4.3rc1.dev282-py2.7.egg/scapy/compat.py", line 45, in raw
return x.__bytes__()
File "/usr/local/lib/python2.7/dist-packages/scapy-2.4.3rc1.dev282-py2.7.egg/scapy/packet.py", line 477, in __bytes__
return self.build()
File "/usr/local/lib/python2.7/dist-packages/scapy-2.4.3rc1.dev282-py2.7.egg/scapy/packet.py", line 597, in build
p = self.do_build()
File "/usr/local/lib/python2.7/dist-packages/scapy-2.4.3rc1.dev282-py2.7.egg/scapy/packet.py", line 582, in do_build
pay = self.do_build_payload()
File "/usr/local/lib/python2.7/dist-packages/scapy-2.4.3rc1.dev282-py2.7.egg/scapy/packet.py, line 569, in do_build_payload
return self.payload.do_build()
AttributeError: 'str' object has no attribute 'do_build'